[theK]

That's not completely correct. The review world is roughly splittable in two broad categories, the "expert person" variant (think fro-knows-photo) and marketplace reviews (the reviews you can find on amazon, etc).

Marketplace reviews are well guardable in terms of that you need to have an account there that purchased the same sku.*

Expert person reviews are based on trust. There is a destructive correlations between spaming Ai reviews and creating a valuable brand as an expert person. So you cannot really do a hard play on ai here, maybe a soft one but that would arguably be just "going with the times".

* Some might ask "why does amazon still have issues with review spam?" Answer is that amazon actually has a pretty firm grip on it, nonetheless the marketplace's incentives seem to be such that some slippage is acceptable/helpful for them.